title: Hyperspectral reflectance imaging technique for visualization of moisture distribution in cooked chicken breast.
abstract: Spectroscopy has proven to be an efficient tool for measuring the properties of meat. In this article, hyperspectral imaging (HSI) techniques are used to determine the moisture content in cooked chicken breast over the VIS/NIR (400-1,000 nm) spectral range. Moisture measurements were performed using an oven drying method. A partial least squares regression (PLSR) model was developed to extract a relationship between the HSI spectra and the moisture content. In the full wavelength range, the PLSR model possessed a maximum  of 0.90 and an SEP of 0.74%. For the NIR range, the PLSR model yielded an  of 0.94 and an SEP of 0.71%. The majority of the absorption peaks occurred around 760 and 970 nm, representing the water content in the samples. Finally, PLSR images were constructed to visualize the dehydration and water distribution within different sample regions. The high correlation coefficient and low prediction error from the PLSR analysis validates that HSI is an effective tool for visualizing the chemical properties of meat.
authors.affiliation: Department of Biosystems Machinery Engineering, College of Agricultural and Life Science, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 305-764, Korea. chobk@cnu.ac.kr.
authors.forename: Lalit Mohan
authors.initials: LM
authors.lastname: Kandpal
authors.forename: Hoonsoo
authors.initials: H
authors.lastname: Lee
authors.forename: Moon S
authors.initials: MS
authors.lastname: Kim
authors.forename: Changyeun
authors.initials: C
authors.lastname: Mo
authors.forename: Byoung-Kwan
authors.initials: BK
authors.lastname: Cho
mesh_terms: D000818:Animals; D001940:Breast / Q000737:chemistry*; D002645:Chickens / Q000378:metabolism; D003196:Computer Graphics; D003296:Cooking / Q000379:methods*; D005504:Food Analysis / Q000379:methods*; D011202:Poultry Products; D012044:Regression Analysis; D013057:Spectrum Analysis / Q000379:methods*; D014584:User-Computer Interface; D014867:Water / Q000032:analysis*
chemical_list: D014867:Water